For some
, the lure of being an unsung hero, someone who is going to save a life, was
convincing enough .
For others
, I rattled my brains for reasons that would appeal to them.
Major surgeries will never cease to happen so I used the simple argument of maintaining a supply of blood for the hospital, for the purpose of saving lives, to convince the young economists for donation.
This sentence is a bit wordy.
To induce the rest
, I made them realize that it was their social responsibility to give blood as we humans are the only source of blood and hospitals
are in constant need .
Overall, it's pretty good. If you need too cut more words out, speak in the present tense, it removes a lot of "I"s. For example "I rattled" turns into "rattling" and "I made them realized" turns into "making them realize."